Walmart and Amazon are taking apparently opposite approaches to agentic commerce. Walmart leans to towards an “open” approach while Amazon prefers a more-closed approach.
Walmart is trying to make its products available wherever consumers choose to shop with AI, partnering with ChatGPT and Gemini, while also building its own agentic agent Sparky, while Amazon is trying to ensure that AI shopping remains inside an environment Amazon controls by barring most third-party access and relying on its own Rufus agent and other related features.
It’s an old set of choices. Should an incumbent embrace a new technology platform that may weaken its control over customers, or defend its existing ecosystem and risk losing customers to the new platform?
Neither strategy is universally successful or applicable, though. Much hinges on a firm’s position within an industry. Openness tends to help a company when the new technology shifts value toward a platform or distribution channel it does not control.
Closed ecosystems tend to work better when the company can make its own platform the preferred destination.
Open approaches also tend to enable new competition, while closed approaches might tend to favor incumbents with market power.
But it also is fair to say that both firms attempt to control the interface, the data, and the transaction.
Strategic issue | Walmart's calculation | Amazon's calculation |
Customer acquisition | Third-party AI can introduce Walmart to consumers who do not begin their shopping journey on Walmart.com. | Outside agents could divert existing Amazon customers and reduce the importance of Amazon's own app and website. |
Competitive position | As a retailer competing against Amazon, Walmart benefits if AI makes retailer choice more fluid. | Amazon benefits from the frictionless integration of its catalog, reviews, payments, Prime benefits, and delivery network. |
Customer data | Cooperation can provide incremental demand, although Walmart risks losing some browsing and intent data to AI intermediaries. | Outside agents could capture valuable signals about what customers want, compare, reject, and ultimately buy. |
Advertising and sponsored listings | AI recommendations could create another route to product discovery, but may weaken Walmart's control over advertising inventory and ranking. | Amazon's sponsored product placements and retail-media economics could be undermined if an independent agent chooses products using its own ranking criteria. |
Price competition | Walmart can compete on price, convenience, grocery, and physical-store reach if agents make comparisons easier. | Agents that systematically compare alternatives could expose price differences and weaken Amazon's ability to retain customers through convenience and ecosystem benefits. |
Transaction economics | A new channel is attractive if incremental sales outweigh integration costs and any commissions or loss of control. | Keeping transactions in-house protects more of the economics and preserves control over checkout, customer service, and fulfillment. |
Principal risk | Becoming a supplier to someone else's AI platform rather than owning the customer relationship. | Protecting the current platform too aggressively and allowing a new AI intermediary to become the consumer's default shopping destination. |
Beyond all that, there can be other issues driving a policy choice. Walmart, for example, encountered issues with a native ChatGPT checkout experience, and now integrates its own Sparky agent. And Amazon might eventually allow some access by external agents, if it can keep control of the customer relationship, or conversely, if it finds it must cede some control to protect sales volume.
Historically, computer operating systems, browsers and mobile phones illustrate cases where distribution, customer relationships or the economic value of the ecosystem shaped choices, generally involving choices between degrees of openness versus closed approaches.
Historical case | Strategic choice | What happened | Lesson for Walmart and Amazon |
IBM PC vs. the Microsoft/Intel ecosystem (1980s–1990s) | IBM initially benefited from a PC architecture built around widely available components and outside software. Microsoft and Intel occupied increasingly powerful positions within that ecosystem. | IBM helped establish a market whose economics ultimately favored independent software and chip platforms. IBM lost much of its control over the architecture it had helped popularize. IBM history of e-business; U.S. DOJ Microsoft findings. | A company can create a successful ecosystem without capturing the largest share of its eventual value. Walmart could help normalize AI-mediated shopping while an AI provider captures customer attention and economic rents. |
IBM OS/2 vs. Microsoft Windows (late 1980s–1990s) | IBM and Microsoft initially cooperated on OS/2, then diverged. Microsoft concentrated on Windows, while IBM continued to develop OS/2. | Windows gained a decisive advantage from software availability, hardware compatibility, and distribution through PC manufacturers. OS/2 struggled to match that ecosystem. OS/2 history. | Cooperation alone does not win. A company must attract developers, users, and complementary services around its platform. Walmart's partnerships will matter most if they generate durable customer relationships and sales. |
Microsoft Internet Explorer vs. Netscape (1990s) | Microsoft initially treated the browser as a threat to Windows and responded by integrating Internet Explorer with Windows and distributing it without a separate charge. | Internet Explorer displaced Netscape's leading position. The U.S. antitrust case documented Microsoft's efforts to protect its operating-system monopoly from the emerging browser platform. U.S. DOJ findings. | Amazon has a rational reason to defend its shopping interface. But incumbents may also use integration and distribution advantages to defend a threatened business model, potentially inviting regulatory scrutiny. |
AOL's walled garden vs. the open Internet (1990s–2000s) | AOL initially offered a curated online environment; the wider Internet offered access to independently operated websites and services. | The open web became the broader platform for online activity. AOL later adapted its business rather than retaining its former position as the primary gateway to online life. IBM's history of e-business. | A retailer's controlled environment can be attractive until consumers prefer a more convenient intermediary that searches across competing destinations. Amazon must consider whether its walls add enough value to offset the friction they impose. |
Apple iPhone vs. Android (2007 onward) | Apple chose a tightly integrated hardware and software ecosystem. Android enabled a broader network of device manufacturers to participate in a shared platform. | Both strategies succeeded, but in different ways: Apple captured substantial value through integration and premium devices, while Android spread across a much wider range of manufacturers. Apple's developer ecosystem; Android. | This is a crucial counterexample to the idea that openness always wins. Amazon could preserve a highly profitable closed ecosystem if its convenience, trust, and fulfillment advantages remain compelling. |
The open web vs. proprietary online services (1990s onward) | Proprietary services controlled the user experience; web standards allowed independent sites, search engines, and new intermediaries to emerge. | Open protocols enabled new categories of businesses and made it possible for companies such as Google to become major gateways to information without owning all the underlying content. | An AI shopping agent could become the equivalent of a search engine for purchases, directing demand across retailers rather than requiring consumers to visit each retailer first. |
It might be tempting to conclude that “open” tends to win, but not always. Apple’s example suggests openness is not a universal rule. Closed ecosystems can thrive when consumers value a coherent experience enough to accept the restrictions.
And “control” might exist in a few different parts of the value chain:
The user's AI agent, which understands intent, compares products, recommends and negotiates
Retailers and their systems who supply product catalogs, prices, inventory, promotions, loyalty and checkout experiences
Physical commerce infrastructure including warehouses, stores, picking, delivery, returns and customer service.
It is possible that ultimate success for Walmart or Amazon will hinge on dominance in a couple, but not all, of these parts of the value chain. And either open or closed strategies could work.
Indicator | Evidence favoring Walmart's strategy | Evidence favoring Amazon's strategy |
Where shopping begins | A rising share of purchase journeys originates in general-purpose AI assistants. | Consumers continue to begin most high-intent shopping journeys on Amazon. |
Incremental customer economics | AI referrals generate profitable new customers and larger baskets at reasonable acquisition cost. | Amazon's own assistant increases conversion, frequency, and retention more effectively than external agents. |
Who controls recommendations | Independent agents can compare retailers and rank products without retailer restrictions. | Retailer-controlled agents provide sufficiently superior recommendations, loyalty benefits, and convenience to keep customers inside their ecosystems. |
Advertising and monetization | Retailers can monetize AI-driven demand without surrendering too much margin or data. | Amazon retains valuable sponsored placements, purchase-intent data, and other retail-media revenue within its own environment. |
Transaction reliability | Common standards make inventory, payment, substitution, delivery, and returns work across retailers. | Complex transactions work materially better inside each retailer's integrated systems. |
Walmart has an incentive to open distribution because it can gain from a change in the shopping gateway.
Amazon, on the other hand, has an incentive to control distribution because it is the existing gateway.
But much hinges on where users experience value. If starting a shopping journey inside Amazon continues to make sense, Amazon wins. If users start to trust their agents, then perhaps Walmart wins. And it seems inevitable that neither Amazon nor Walmart approaches win all the time.
It might matter whether the user values selection across retailers (perhaps choices are narrower but price differences can be significant), compared to the value of curation when the product universe is large.
The key variables might include:
how much comparison matters
how costly a mistake is
how much context the agent needs
whether the retailer has a unique advantage in price, assortment, or fulfillment.
Not every shopping experience favors each strategy.
Shopping experience | Likely advantage | Why |
Routine grocery replenishment | Walmart openness | An agent can compare prices across grocers, assemble a basket, and optimize substitutions, store proximity, and delivery. Walmart's stores and grocery scale are valuable if the agent can access them. |
Repeat purchases of known products | Amazon curation, with a caveat | One-click reordering, purchase history, reviews, and reliable delivery make Amazon convenient. But if an independent agent can automatically find the cheapest equivalent across retailers, Walmart benefits from openness. |
Staples and commodity products | Walmart openness | For paper towels, detergent, batteries, and pantry staples, product differences may be small relative to price, availability, and delivery cost. Cross-retailer comparison is valuable. |
Novelty and product discovery | Amazon curation | A broad catalog, customer reviews, recommendations, and product comparisons can help consumers discover unfamiliar products. A strong independent AI agent could, however, reproduce much of this capability across retailers. |
Rare, complex purchases | Amazon curation, potentially | For cameras, specialized tools, electronics, or hobby equipment, product specifications, compatibility, and reviews matter. Amazon has extensive product information and shopping history. An independent agent may win if it searches specialist retailers and manufacturer sources more comprehensively. |
Urgent purchases | Depends on local fulfillment | The winning retailer is the one that can actually deliver the right item fastest. Walmart's physical-store network may be decisive for local essentials; Amazon may win on products already stocked in its fulfillment network. |
Large, mixed baskets | Walmart openness | An agent can optimize the entire basket across retailers, rather than selecting the best individual product at one retailer. Walmart's grocery, household, pharmacy-related merchandise, and general merchandise breadth can help. |
Premium or highly differentiated goods | Depends on brand access | Product authenticity, warranties, authorized distribution, expert advice, and service may matter more than the lowest price. Neither Walmart's openness nor Amazon's curation automatically wins. |
Gift shopping | Open agents, potentially | An agent can search multiple stores using recipient interests, budget, delivery deadlines, and gift availability. Amazon's reviews and recommendations still help, but cross-retailer discovery may offer more distinctive choices. |
Fashion, beauty, and home décor | Mixed | Personal taste, visual discovery, sizing, returns, and brand identity complicate pure price optimization. Retailer-specific expertise can matter, but a cross-retailer agent could broaden discovery and compare return policies. |
And different types of purchases might create value in ways that either approach can tend to capture:
Frequency favors whichever platform has the best history, automation, and fulfillment.
Commodity products favor open, multi-retailer agents.
Decision complexity might favor the agent with the best data and reasoning
Fulfilment (delivery speed, returns, warranties, local availability matter favors the provider with strongest operational capabilities.
And there also are the issues around user preferences. Some users will want to delegate more; some less. Some will trust agents more; some less.
The point: it is not certain which approach is “better” or “more successful” long term. Both can work, sometimes, for some purchases.